FIg7_15 Open Cluster

Fig. 7.15 . A brilliant cluster of bright blue-colored stars is located in the Small Magellanic Cloud, about 200,000 light-years away and about 65 light-years across. This Hubble Space Telescope image subtends an angle of about 70 seconds of arc. (Courtesy of NASA/ESA/E. Olszewski U. Az.)